Memory Write to a Coarse-Grained Reconfigurable Processor Based on an EDMA Header in a Received Transfer Frame

A computing system comprising:

• an external network;
• and
• a plurality of coarse-grained reconfigurable processors (CGRPs) including a first CGRP and a second CGRP, the first CGRP comprising:
• a set of coarse-grained reconfigurable units (CGRUs) including a first CGRU;
• a top-level network (TLN) coupled to each CGRU of the set of CGRUs;
• a set of external interfaces including an external network interface (ENI) for communication over the external network and an external memory interface (EMI), the ENI coupled to the external network, the EMI coupled to the TLN and a first memory;
• and
• an external network shim (Eshim) including an external direct memory access (EDMA) engine, the Eshim coupled to the TLN and the ENI, the Eshim configured to:
• receive, over the external network through the ENI, a transfer (TX) frame from the second CGRP including an EDMA header and frame data;
• generate, based on the EDMA header, a TLN write request including a write address and a write data length, and TLN write data based on the frame data;
• and
• initiate, over the TLN through the EMI, a memory write of the TLN write data to the write address in the first memory.

A non-transitory computer-readable medium storing instructions that, when executed by one or more computers, cause a coarse-grained reconfigurable processor (CGRP) to perform a method, the CGRP comprising a set of coarse-grained reconfigurable units (CGRUs) including a first CGRU, a top-level network (TLN) coupled to each CGRU of the set of CGRUs, a set of external interfaces including an external network interface (ENI) for communication over an external network and an external memory interface (EMI), the ENI coupled to the external network, the EMI coupled to the TLN and a memory, and an external network shim (Eshim) including an external direct memory access (EDMA) engine, the Eshim coupled to the TLN and the ENI, the method comprising:

• receiving, by the Eshim over the external network through the ENI, a transfer (TX) frame including an EDMA header and frame data;
• generating, by the Eshim based on the EDMA header, a TLN write request including a write address and a write data length, and TLN write data based on the frame data;
• and
• initiating, by the Eshim over the TLN through the EMI, a memory write of the TLN write data to the write address in the memory.